Magnetic recording media

Details Magnetic recording media Magnetic recording media

1984-11-19

1986-01-28

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of polyamidoester

252 6254, 360134, 360135, 360136, 427128, 428522, 428524, 428694, 428900, G11B 570

Patent

active

045671087

ABSTRACT:
Magnetic recording media comprise a non-magnetic base which is provided with a magnetic layer consisting of finely divided anisotropic magnetic material which is dispersible in binders and additives, the binder being a mixture of (1) a high molecular weight thermoplastic linear polyurethane, (2) a polyvinylformal binder, a phenoxy resin, a cellulose ester or a vinyl chloride copolymer and (3) an OH-containing polyurethane which is crosslinked with polyisocyanates.

REFERENCES:
patent: 2871218 (1959-01-01), Schollenberger
patent: 3149995 (1964-09-01), Bauer
patent: 3150995 (1964-09-01), Bauer
patent: 3247017 (1966-04-01), Eichler
patent: 3320090 (1967-05-01), Graubert
patent: 3558353 (1971-01-01), Harada
patent: 4058646 (1977-11-01), Vaeth
patent: 4320171 (1982-03-01), Motz
patent: 4324438 (1980-11-01), Horigome
patent: 4328282 (1982-05-01), Lehner
patent: 4368238 (1983-01-01), Somezawa

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